The best API Client alternative to Insomnia REST Client is Bruno, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 50 alternatives to Insomnia REST Client and loads of them are API Clients so hopefully you can find a suitable replacement. Other interesting API Client alternatives to Insomnia REST Client are Postman, NativeRest, Yaak and Hoppscotch.
Lightweight open source API client offering offline API testing, local filesystem storage via plain text, version control compatibility with git, intuitive request management, privacy-first design, cross-platform support, minimal resource usage, and community-driven development.
Postman is a collaborative platform for API development that provides extensive tools for designing, testing, and documenting APIs. It allows API verification through requests, automated testing via Collection Runner, and offers both free and paid plans, catering to individuals and teams.
Native desktop app for Windows offers high-performance REST and HTTP API testing, low memory and CPU use, custom methods, portable version, proxy support, multiple environments, code generation, multilingual interface, and import/export in light or dark themes.
The API client for modern developers. Call REST, GraphQL, and gRPC APIs from a simple and intuitive app.
Hoppscotch is an open-source API development ecosystem. It helps you create your requests faster, saving you precious time on your development.
HTTP Toolkit is a beautiful, cross-platform & open-source HTTP(S) debugging proxy, analyzer & client, with built-in support for modern tools and automatic interception for clients from Docker to Android to iOS.
Insomnium is a fast local API testing tool that is privacy-focused and 100% local. For testing GraphQL, REST, WebSockets and gRPC. This is a fork of Kong/insomnia.
RapidAPI for Mac (formerly Paw) is a full-featured HTTP client that lets you test and describe the APIs you build or consume. It has a beautiful native macOS interface to compose requests, inspect server responses, generate client code and export API definitions.
Eviware, the maker of soapUI, Web Service Testing Leader
soapUI is a tool for functional testing, mainly of web services like SOAP based web services and RESTful web services, but also HTTP based services and JMS Services as well as databases. soapUI is an open source and compl.
API testing tool. Which allows web developers to create and test custom HTTP requests.
Voiden.md is an offline-first, Git-native API workspace that unifies specs, docs, tests, and mocks using programmable Markdown blocks. Build APIs the way you actually work.
All the user-friendliness of our Terminal version, now wrapped up in a sleek graphical interface.
Requires an account before you're able to use it. If you're moving from Insomnia because they required accounts, this application may not be the one you're looking for.
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It's an Insomnia fork without the user account requirements, it's more lightweight and respects user privacy.